Nozzle for vacuum cotton-picking machines.



Patented Nov. 26, 1918.

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UN T TABS FFICE.

GEORGE H. WATERHOUSE, 0F WES'IBROOK, MAINE, ASSIGNOR T0 WOODIBURY K.DANA, OF WESTBROOK, MAINE.

NOZZLE FOR VACUUM COTTON-PICKING MACHINES.

Specification of Letters Patent.

Patented Nov. 26, 1918.

Application filed. September 26, 1916, Serial No. 122,292. RenewedAugust 28, 1918. SeriaI No. 251,836.

To all whom it may concern:

Be it known that I, GEORGE H. WATER- HOUSE, a citizen of the UnitedStates, residing at Westbrook, in the county of Cumberland and State ofMaine, have invented certain new and useful Improvements in Nozzles forVacuum Cotton-Picking Machines, of which the following is aspecification.

My invention relates to nozzles for vacuum cotton picking machines wherethe nozzle is connected with a vacuum tube for drawing ihe cotton intothe nozzle from the cotton Such nozzles are frequently provided withrotating picking tubes having pins at the outer end, whereby the cottonfiber is entangled and torn from the plant at the same time beingtwisted and drawn by the in-coming air into the vacuum tube.

In my invention, the air which is being drawn in is divided into twoparts, one part passing into the tube with the cotton and the other partcoming in contact with the propeller blades which are carried by theoutside of the picking tube for rotating the same.

In my present invention these propeller blades are comparativelynumerous and are arranged about the picking tube in the manner of asteam turbine, the air being admitted to the blades through a series ofopenings formed in the side of the casing preferably at an inclinationso that the in-rushing air strikes the blades fairly and insures thepowerful rotation of the tube.

My invention consists of the arrangement and combination of partshereinafter described and claimed.

My invention may be readily understood by reference to the accompanyingdrawing in which is shown a nozzle constructed in accordance with myinvention and designed to be used at the end of a length of pneumatichose through which the air is drawn by a suitable fan.

Referring to the drawing.

Figure 1 is a half side View and a half longitudinal section through thenozzle.

Fig. 2 is an enlarged section on the line 11 of Fig. 1.

Fig. 3 is an enlarged section on the line 2-2 of Fig. 1.

Fig. t is a side elevation of the rotary picking tube and Fig. 5 is adetail section taken on the line 33 of Fig. 3.

Referring to the drawing, 4 represents the lower or minor end of atubular casing intended to be connected with a suitable rubber hose ortube. The upper end of the section at of the casing is expanded orenlarged into a screw threaded socket 6. The upper or outer section 8 ofthe casing has its lower end enlarged to form a screw threaded end 7 tofit the socket 6. There is thus formed in the center of the tubularcasing an annular enlargement within which the propeller blades 9 of therotary tube 10 are located. The tube 10 rests and rotates on a ballbearing joint formed at each end, the upper ball race 12 and the lOWerball race 11 both being formed as annular projections on the tube 10.The opposing ball races 13 and 14 are formed on the casing, being offsetinwardly from the body of the casing by spider arms 15 leaving anannular space 16 around the ball bearing through which the air passesafter it leaves the propeller blades 9.

The air is admitted to the blades 9 through air ports 17 formed in theupper or outer member of the casing and these openings are formed atsuch angle that the air on entering strikes the blades fairly givingthem the desired impetus to rotate the picking tube.

The tube 10 is somewhat smaller in diameter than the straight end of thecasing 4 leaving a space between the two tubes through which the airwhich is drawn through the propeller blades joins the air which draws inthe cotton and passes through the picking tube. The upper or outer endof the picking tube is provided with a series of picking pins whichcatch the fibers of cotton and twist them from their The upper and lowersections of the nozzle are thus connected by a screw thread connectionso that one end may be unscrewed from the other.

When the section 8 is removed the picking tube may be slipped outwithout disturbing the ball bearings.

All the parts of the nozzle may thus be dismounted and inspected bysimply unin screw threaded engagement and a rotary screwing one jointand put together in the picking tube journaled Within said casing samemanner. and having fan blades lying within said I claim: annularenlargements, the upper enlarge- 5 In a head for pneumatic cottonpicking ment having a series of relatively small 15 machines, thecombination of a cylindrical openings for admitting the air to the topscasing consisting of a lower section having of said blades for rotatingthe same. an annular enlargement at its upper end, an In testimonywhereof I hereby afiix my upper section having an annularenlargesignature. 10 ment at its lower end, the two sections beingGEORGE H. WATERHOUSE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents 7 Waahington, n. G.

